110 lines
3.0 KiB
C
110 lines
3.0 KiB
C
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/*
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* drv_adc.c
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*
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* Created on: 2025年4月7日
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* Author: 22332
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*/
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#include "drv_adc.h"
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#define ADC_INSTANCE 0UL
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#define ADC_VREFH 3.3f
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#define ADC_VREFL 0.0f
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uint16_t adcRawValue;
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uint16_t adcMax;
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float adcValue;
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char msg[255] =
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{ 0, };
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void floatToStr (const float *srcValue, char *destStr, uint8_t maxLen)
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{
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uint8_t i, lessThanOne = 0;
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float tempVal = (*srcValue);
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uint8_t currentVal;
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if (tempVal < 0)
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{
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tempVal *= -1;
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*destStr = '-';
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destStr++;
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}
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for (i = 0; i < maxLen; i++)
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{
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currentVal = (uint8_t) (tempVal);
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*destStr = currentVal + 48;
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destStr++;
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tempVal -= currentVal;
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if ((tempVal < 1) && (lessThanOne == 0))
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{
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*destStr = '.';
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destStr++;
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lessThanOne = 1;
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}
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tempVal *= 10;
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}
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*destStr = 0;
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}
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void bsp_drv_adc_init(void)
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{
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if (adc_config_1_ConvConfig0.resolution == ADC_RESOLUTION_8BIT)
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adcMax = (uint16_t) (1 << 8);
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else if (adc_config_1_ConvConfig0.resolution == ADC_RESOLUTION_10BIT)
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adcMax = (uint16_t) (1 << 10);
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else
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adcMax = (uint16_t) (1 << 12);
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ADC_DRV_ConfigConverter(ADC_INSTANCE, &adc_config_1_ConvConfig0);
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ADC_DRV_AutoCalibration(ADC_INSTANCE);
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}
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uint16_t bsp_drv_adc1_read(void)
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{
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/* Configure ADC channel and software trigger a conversion */
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ADC_DRV_ConfigChan(ADC_INSTANCE, 0U, &adc_config_1_ChnConfig0);
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/* Wait for the conversion to be done */
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ADC_DRV_WaitConvDone(ADC_INSTANCE);
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/* Store the channel result into a local variable */
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ADC_DRV_GetChanResult(ADC_INSTANCE, 0U, &adcRawValue);
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/* Process the result to get the value in volts */
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adcValue = ((float) adcRawValue / adcMax) * (ADC_VREFH - ADC_VREFL);
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floatToStr(&adcValue, msg, 5);
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printf("ADC1_read:");
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printf(msg);
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printf(" V\r\n");
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return adcRawValue;
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}
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uint16_t bsp_drv_adc2_read(void)
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{
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/* Configure ADC channel and software trigger a conversion */
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ADC_DRV_ConfigChan(ADC_INSTANCE, 0U, &adc_config_1_ChnConfig1);
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/* Wait for the conversion to be done */
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ADC_DRV_WaitConvDone(ADC_INSTANCE);
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/* Store the channel result into a local variable */
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ADC_DRV_GetChanResult(ADC_INSTANCE, 0U, &adcRawValue);
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/* Process the result to get the value in volts */
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adcValue = ((float) adcRawValue / adcMax) * (ADC_VREFH - ADC_VREFL);
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floatToStr(&adcValue, msg, 5);
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// printf("ADC2_read:");
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// printf(msg);
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// printf(" V\r\n");
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// printf("adcRawValue = %d",adcRawValue);
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return adcRawValue;
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}
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uint16_t bsp_drv_adc3_read(void)
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{
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/* Configure ADC channel and software trigger a conversion */
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ADC_DRV_ConfigChan(ADC_INSTANCE, 0U, &adc_config_1_ChnConfig2);
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/* Wait for the conversion to be done */
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ADC_DRV_WaitConvDone(ADC_INSTANCE);
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/* Store the channel result into a local variable */
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ADC_DRV_GetChanResult(ADC_INSTANCE, 0U, &adcRawValue);
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/* Process the result to get the value in volts */
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adcValue = ((float) adcRawValue / adcMax) * (ADC_VREFH - ADC_VREFL);
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floatToStr(&adcValue, msg, 5);
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// printf("ADC3_read:");
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// printf(msg);
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// printf(" V\r\n");
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return adcRawValue;
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}
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